sin20cos40+sin40cos20
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Heya buddy !!!
Sin( A + B ) = sinAcosB + cosAsinB
In your question,
sin20cos40 + sin40cos20
A = 20 & B = 40
So, sin20cos40 + sin40cos20
= sin( 20 + 40 )
= sin 60
= √3/2
★★ HOPE THAT HELPS ☺️ ★★
Sin( A + B ) = sinAcosB + cosAsinB
In your question,
sin20cos40 + sin40cos20
A = 20 & B = 40
So, sin20cos40 + sin40cos20
= sin( 20 + 40 )
= sin 60
= √3/2
★★ HOPE THAT HELPS ☺️ ★★
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